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Double the horizontal (1920 = 3840) and double the vertical (1080 = 2160).īottom line, on screen, you have 4 times as many pixels making up the screen content, yet at the same visual size as 1080p. For each single pixel on 1080p, the 4k monitor displays four pixels, in a 2 x 2 grid. If you double 1920 you get 3840 and double 10. Bear with me as this takes a bit (at least it did for me) to wrap your brain around. With a 4k display set in preferences to use its native "default for this display" resolution, what you see visually on screen with a 27" 4k monitor is exactly the same size as what you would see on a 27" 1080p monitor. I disagree with VikingOSX on this: " One consideration is that if you opt for a 4K display, everything will appear smaller on the screen" It is all I hoped for, and more, in that it solved the problem my previous monitor had with not waking up with my M1 Mac mini. To say that I have been pleased with the choice would be an understatement. So you are indeed benefitting from the clarity and sharpness of the 4K display, but with objects scaled to a size that is more comfortable.After a great deal of reading and research, I purchased the recently released LG 27UN850-W. You can make things smaller, and consequently get more of them on the screen or make things larger, and thus (like zooming in) see slightly less content. The option in System Preferences lets you choose a scaling size. So a 1 pixel object now uses a 2x2 pixel square, and those pixels can be slightly different to give greater clarity and shading. So your display is using all its 4K pixels, but the objects are twice as large. So when the computer measures the size of something, it 'pretends' it is twice as big, and then it lays it out on the screen.

The solution is for the computer to double the size of everything. So 12 point text will display at less than half the size of the old 72ppi screens! Your 32-inch 4K display has a pixel density of 150 pixels per inch. This makes the display of images very clear, but means that objects (such as text) are corresponding smaller. Modern display screens have much smaller pixels, so you get more of them to an inch. Text at 12pt would display on the screen at 12/72 = 1/6 of an inch. This is the same size as 1 point (a unit of 1/72 inches), so 1 point = 1 pixel. The very first Apple computers had displays with 72 pixels per inch.